Building custom LCM types as a standalone package.

[pangtao22]

As of #20, custom LCM types are generated into the project binary directory, and a variable to the lcm-type directory is set in the project cmakelist to enable access:

robot-plan-runner/CMakeLists.txt

Line 89 in b649410

set(LCM_INCLUDE_PATH ${CMAKE_BINARY_DIR}/lcmtypes)

. Eventually we'd like to have these lcm types installed as a separate package, similar to how drake installs its lcm types.

[mpetersen94]

Work on this should also include building the java versions of the lcmtypes.

[hjsuh94]

Need java versions for message to be decodeable from drake-lcm-spy.